James Lovelock is an environmentalist and inventor of the Gaia theory. Here is a terrific interview with him regarding the current state of climate science. By the way, Lovelock believes in global warming and is quite concerned about it.
Lovelock also makes the point that there is a real risk to putting billions of tons of CO2 into the atmosphere and I agree. That is why we need a smarter energy mix.
While I certainly do not agree with every point Lovelock makes, I have always endeavored to include well-thought-out opposing views on this blog. Hope you have enjoyed reading the interview.